Razor-sharpening machine.



J, PERSAULT L i?. MARQUIS. RAZOR SEARPBNITG MACHINEt APPLICATION FILED MAE. 25, 1913.

J. PERSAULT & T. MARQUIS. RAZOR SHARPENING MACHINE.

I APPLICATION FILED MAB.. 25, 1913. 1,082,904. Patenednec. 30,1913.

4 SHEETS-SHEET 2.

J. PBRSAULML T. MARQI'S'. 1

v RAZOR SHARPBNING MACHINE.

APPLICATION FILED MAR. 25. 1913.

Patented Dec.. so, 1913.

' 4 SHEETS-SHEET 3.

. J. PERsAUL-T & T. MARQUIS.

RAZOR SHARPBNING MACHINE. APPLICATION HLLD4 MAB.. 25, 1913.

Patented Deo. 80, 1913.

,4 SHEETS-SHEET 4.

oNrTED srnrns Panini? ornron.

JOSEPH PERSAULT. 'AND vIHEOPIzllILE` MARQUIS, OF NASHUA,`NEW`IIAMPSHIRE.-

Specification of Letters Patent. Application mea March 25, 1913. serial No. 756,639'.

To all whome'zt may concern Be tknown that we, JOSEPH PERSAULT and. THEoPHrLE MARQUrs, citizens of the =`UI1 ited Statespresiding at Nashua, in the 5 countyl of Hillsboro.I and State of. New Hampshire, have invented new and useful Improvements in Razor- Sharpening 'Machines, of which. the following is al speciication.

Our, present invention pertains Yto -means fory sharpening. the blades of safety and .-.other razors; and it contemplates the' provision of a simple, easily operated and' ecient machinefor honing and stropping razor'andother blades. f Th fully scription and claims when the same are read 'in connection with the drawings, accomv .panying and forming part of this specitication, in which? ,l v

Figure 1 is' `a side `elevation of the machine constitlting the best practical. embodi ment of ourjnvention that we have as yet in t efplaneindicated by theline 2-2 of Fig-1, looking in the direction indicated by the arrow.y is a det-ail transverse `section taken in the 'plane indicated by the line l of Fig. 1,-looking in .f dicated.. by

the right-hand end of the machine.

ofthe-l1older we prefer to employ for safety-razor blades.v 7 is a detail view, partly 'in' elevation an partly in section, illustrative of the feed-means for moving a yblade to besharpened longitudinally of the machine. 8 is` an lleve it comprise a suitably supported table` longitudinal exterior rib 5.

e invention in all of its details will be nde'rstood from the following de- 4gaged'with the shaft and yet be capable of moving thereon of thelength thereof, a.bail

to and extending evised. Fig. 2is a transverse section taken 'point adjacent the direction in arrow. Fig.4 is-an elevation ofy Fig. 5 1s anelevatiolnand Fig.' 6 an inverted planenlarged detail secv tion' showing the arrangement ofthe holder whereuponthe holdercan 1, and bearings EZ disposed aboveand lixedly connected with the table;

Journaled in the to oscillate about its axis-is a longitudinal, hollow `shaft 3, longitudinally'slotted between the bearings 2, as indicated by.4. It will also be noted by comparison of Figs. l and 8,'t-hat the shaft 3 is provided with a rammed n ec. 3o, 1913.

bearings 2 and adapted Fixed upon the right-hand end. ofthe hol- 'l low shaft 3 is a crank G'through whichthe shaft is rocked to and fro about its axis, and mounted on the said shaft 3, intermediate of the bearings 2, is the blade-carrying and manipulatingdevice comprisedin our improvements.

The said device 'comprises a body surrounding the shaft 3 and enrib 5, so as tov rock .with the in the direction shaped standard l8 fixed from the body 7, an endwise movable plunger 9 guided in thebody 7 and extending Vthrough the slot 4 in theshaft 3, and also l guided inthe outer portion of the standard 8 and having a linger-piece 10 at its outer end, and also having an enlargement 11 'at a theA body 7, a cpiled spring! lsurrounding the'plunger 9 antl'interposed between the outer portion of-tllefstandard 8 andthe 'enlargement `llgs'o as to'jyi'eldingly .press the plunger toward the center of the hollow shaft-3, and a threaded Vnut section 13 carried at the inner end of the plunger 9 and designed to be yieldingly held against' 'and to 'coperate with the longitudinal feed` y screw lll. The described appurtenances `of the holder. are clearlyshown in Fig.?8, and by reference to said figure, it willfbe readily understood` that by pulling outwardly on the linger-'piece of the plunger 9 and the action of the spring 12, v13 is disengaged from the feedscrew 14,

and easily moved lengthwise on the hollow shaft 3 in either-direction, and this independently of then feed-screw 14. v Vhen, however, the plunger. 9 is released, the spring 12 will operate to tio-1113 in engagement with the -threadof against' the nut section l ,9,5 be expeditiously' hold the nut secthe screw 14, and then the holderfwill de# pend on the rotationofthe Iscrew for. its

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movement in the direction of the length of the machine.

As best shown in Fig. 8, theholder body 7 is provided with a stem 15, and in thel i, rier 17 is a shaft 19 that is held against too free rocking movement and also against undue endwise movement by a coiled spring 20. The said shaft 19 is.provided with a f plurality of studs 21, which are designedto take into the apertures provided in a -conventional safety razor blade'22; the said .blade 22 being mounted on the said .studs 21 and retained in position byv a plate 23, Fig. 6. The plate 23 is provided with beveled ends 24, and these are snugly. arranged in undercut portions 25 of the shaft 19.' ByI virtue yof the arrangement shown in Fig.

' 6, it will be manifest that the plate`23 will securely hold the blade 22 on the studs 21 of'shaft 19, and yet when it is desired to remove the blade to vgive place to a fresh blade, the plate 23 may, by the exertion of a little pressure,be moved in the direction of its width outof engagement with the shaft 19, whereupon the vblade 22 may l,be readily lifted off the studs 21.

While we prefer to employ the carrier 17 .and the described appurtenances thereof,'we do not desire to be understood as conning ourselves'to the said carrier and its appurtenances, inasmuch as'a blade carrier of any other description may -be employed in the practical use 0f our machine without involving departure from the scope of our invention as claimed. g

The feed-screw 14 is journaled in the end portions of the tubular shaft 3, and 1s pro# vided at one end with a spur gear 26 through .which the feed-screw is continuously rotated during-,the operation of the machine..

Journaled in suitable standards 27 fixed to and rising from the table lare honing rolls" 28 which are preferably composed of the abrasive substance commonly known as razor grit. The journalsl29l df the said ro-lls 28 are provided with band pulleys 30 at their outer ends, as clearly shown in Figs.

Rolls vformed-of wood and covered with felt and leatherin the order named may be thevvscope lof our claims invention We..

prefer, however, to employ for' stropping 31 have their inner stretches opposed, and they are mounted on upper idler rolls 32, and lower driven rolls 33. At about the .proportional Vdistance 'illustrated below the idler rolls 32, small rolls 34 are opposed to the idle sides of the inner stretches of the stropping belts 31; vThe saidrrolls 34 are mounted in carriages 35,.and the said carriages are adjusted `and 4adjustably iixed through the medium of suitably mounted 'screws 36. Consequently-it will be manifest that the rolls 34 can be caused to exert.

greater or less pressure against the innery stretches of the stropping` belts. This is advantageous, inasmuch as when a blade is being stropped, .the edge of the blade touches the stropping belts at points immediately'v belowthe small rolls 34. This contributes -to the production of a {in e edge on the blade,

inasmuchA as the portions of the inner lstretches of the belts below the rolls 34 are maintained ina taut state, and yetare possessed of-fleziibility.

In the operation'of our novel machine and when the abrasive rolls 28 and thebelts 31 are driven in the manner hereinafter def scribed, a blade can be first honed and then stropped.l In honing the blade,y the operator manipulates the plunger 9 s0 as todisengage the nut .section 13 from the feed 'scn'e'vvf 14, land then moves the bodyr 7 tz?, a point at one end of the pair of rolls 28. The operator. then releases the plunger 9 to reestablish engagement between the nut section 123 and the screw 14, whereupon owing to the rotation of the feed-screw, the blade will 'be caused to traverse from one end of other side will be presented to the other abrasiveroll 28'. 'At the end of the described traverse of the blade, the operator. by manipulating` the plunger 9 disengages the nut section 13 lfrom the feed screw 14, and then and back tothe starting point. He then releases the plunger 9, whereupon'the described honing operation will lbe repeated,

vand it will be obvious in this connection that 'the ,honing, operation may be repeated as'120 many times as isnecessary to adequatelyhone the blade. After the honing operation is completed, the plunger 9 is manipulated and the' blade "holder is adjusted on'. the shaft 3 and independently 4of ,the feejdscrew 14 Q moves the holderwith the carrier 17 and the razor blade 22 endwise of the machine to place the' bla'derbetween thestropping belts 31.. The plunger 9- is their released and ,the blade is caused totraverse .the space between the belts 31, and during such traverse is ,oscillated to presentitA Vto one belt isn `e operator can cause the blade to traverse the space betweenthe belts 31 as. ymany times as is necessary to produce a ne ed'ge on the blade.

Connected to the crank of the hollow shaftv 3 isa connected, in turn, with a spur gear 41 off thecenter thereof, whereby when the gear 41 is rotated the hollow shaft 3 Will be f 4s, and it.

' and 48.

about f its axis oscillation of the means rocked 4in the "manner and for the purpose beforevdescriloed.l

- Intermeshed with the spur gear v26 is a s pur gear 42 ,lFigQilffast on a short shaft 43 which also hasa fast band pulley 44. This band'- pulley is connected throughV a belt'45 with a pulley 46 fast\on along shaft 47; The said shaft 47 is provided at an intermediate point of its length with a fast sprocket gear spur 1s also provided With a fast gear' -49 which latter is intermeshedv with the spur gea-r 41, Fig. 4.' Consequently it will be observed that when the shaft 47 is rotated, the hollow shaft k3 will be rocked and the feed screw 14 will be rotated. The shaft 47 is driven froma drive-shaft 50, best shown in Fig. 3, through a sprocket gear 51 fast thereon, and a sprocket belt 52 mounted on the gears 5l Obviouslythe shaft 50 may be driven by any suitable motor which we have deemed it unnecessary to illustrate.

The abrasive rolls 28 are driven from the shaft 47 through the medium yof a band pulley 60 fast onsaid shaft, Fig. 4, and belts `61 mounted on the 'saidband pulley 60 and `the'band pulleys 30; one of thesaid belts or be observed that whenA the roll 33 that loosely rounds the shaft 47 is a sprocket gear 70,

Figs. 1 and 3, and connecting the said sprocket gear with a sprocket gear 7l fast on the drive-shaft 50 is a sprocket belt 72.

It will be gathered from the foregoing that rotation of the drive-shaft v50 will be 'attended not only by endwise movement and for carrying the razor blade to be sharpened, but will also be attended by'rotation of the abrasive rolls 28 and appropriate movement of the belts 31.

We have entered into a detailed descrip- .tion of the construction and relative arrangement of the partscomprised in the present and best practical embodiment of our invention -of which we are aware, in order' to impart a full,A clear, and exact unpitman 40, Fig. 4, which isported yhollow ing longitudinally derstanding of the same. We do not desire, however, `to be 1inderstood^asconining ourselves to the said specific. construction f and relative arrangement of parts.','1as, in t-hef Havingdescribed our invention', whatfwe t' claim and desire tosecure by Letters-Pat#V 1. In a vrazor combination of opposed sharpening devices' separated by an intervening space, means* for driving inthe said sharpening devices, aV suitably supported hollow :shaft arranged above andparallely to saidspace and having a longitudinal' slot, means, for yrocking saidy hollow shaft about its axis, a feed screw'extending through and movable independently of the hollowshaft, means for rotating the said screw, blade-carrying means mounted on the hollow shaft to turn therewith and move thereon in thedirection of the length thereof, a sectional nut disposed in the hollow shaft and in engagement with the feed screw, a standard fixed on the blade-carrying' means, aplunger guided in the bladecarrying means and the standard and connected to the sectional nut and having an enlargement at an intermediate point-of its length, and a spring surrounding the plunger and interposed between the enlargement thereof andv the standard for yieldingly 'holding' the sectional nut in engagement with the thread of 2. In a razor lsharpening machine, the combination of opposed sharpening devices separated by an intervening space, means for driving the saidv sharpening devices, a suitably supported hollow shaft arranged. above and parallel to said space and having at one end a crank, a wheel,means for rotating said wheel, a pitman connected to said crank and also connected to said wheeL off the center thereof, blade-carrying means' mounted on' the hollow shaft to turn therewith and move thereon in the direction of the length-thereof, and means'for'moving the blade-carrying means on the hollow shaft lengthwise of the said shaft.

3. The combination of a suitably supshaft `having a longitudinal slot and an exterior longitudinal rib, means for rocking said shaft, a feed screw extendthrough and rotatable dependently of the hollow shaft, means rotating the said screw, blade carryingmeans movable lengthwise of the hollow shaft and engaged with said exterior rib so' as to turn with the shaft, a nut section carried by said carrying means, and means alsoY carried by said carrying means for yieldingly holding the-tuut section in engagement i sharpeningmachine,y the f lio with the thread f the feed'vscrew and for 130 enabling an operator to disengage the nut section from the feed screw.

l. In a razor sharpening machine, the

I combination of a shaft having fast thereon l.above the l driven rollers, stropping belts mounted on the4 lower driven rollers and the upper idler ,rollers and separated by an intervening space; abrasiveghoning rolls separated byy an intervening space that is alined with saidspace between lthe strapping belts,

means'intermediate the-said shaft and the honing rolls for driving the latterby the former, means for carrying a razor blade to be sharpened, means for causing the said carrying means to make traverses of the space between the strapping belts and the space between the honing rolls, and means for oscillating the said carrying-mean sl incidental to the traverse thereof.

In testimony whereof We have hereunto set our hands in presence of two subscribing Witnesses.

JOSEPH PERSAULT. THEOPHYILE MARQUIS.

lVitnesses FELIX DAMBOIS, DAVID Aron'rATUs. 

